CN201112551Y - Antenna radiator and antenna device - Google Patents
Antenna radiator and antenna device Download PDFInfo
- Publication number
- CN201112551Y CN201112551Y CNU2007200708928U CN200720070892U CN201112551Y CN 201112551 Y CN201112551 Y CN 201112551Y CN U2007200708928 U CNU2007200708928 U CN U2007200708928U CN 200720070892 U CN200720070892 U CN 200720070892U CN 201112551 Y CN201112551 Y CN 201112551Y
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- radiation
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- antenna
- antenna radiator
- base portion
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Abstract
The utility model discloses an antenna radiator, which comprises a first radiation portion, a second radiation portion, a grounding support leg, a feeding support leg, a base, and a third radiation portion, wherein one ends of the first, the second and the third radiation portions are connected with the base, and the other ends are hung in the air; the third radiation portion is arranged between the first and the second radiation portions; one end of the grounding support leg is connected with the base, and the other end is grounded; and the feeding support leg is connected with the base. The utility model also discloses an antenna device. The antenna radiator provided in the utility model can broaden the bandwidth of operating frequency without increasing the occupying space; and has the advantages of integral forming by stamping, easy implementation, low processing cost, and applicability to large scale production.
Description
Technical field
The utility model relates to the mobile terminal antenna technology, more specifically to a kind of new antenna radiator and antenna assembly that is applied to three frequency ranges (GSM/DCS/PCS frequency range).
Background technology
Along with the fast development of wireless communication technique, the various communication products that spring up like mushrooms out on the market, double frequency module, three frequency modules, or even more the application of the module of multiband has become a kind of trend of the development of antenna applications in recent years.
The topmost hand volatility of mobile phone is antenna, antenna for mobile phone can be divided into external antenna (being also referred to as exposed antenna) and built-in aerial (also claiming concealed antenna), mobile phone light, thin, short, be the trend of recent fashion for a short time, characteristics such as the outward appearance of product, size become the important evaluation criterion of consumer to mobile phone, the mobile phone global design is healed and is become small and exquisite, in this case, the built-in trend of the times that becomes Antenna Design of antenna.
Antenna for mobile phone now mainly is divided into following two kinds: monopole antenna (unipole antenna) and PIFA (Planar Inverted F Antenna, planar inverted-F antenna) antenna.Compare with the PIFA antenna, though the transmitting power requirement of the easier realization mobile phone of monopole antenna, (SpecificAbsorbtion Ratio absorbs ratio to SAR, be the electromagnetic absorption emittance of the material absorbing of unit mass in the unit interval) bigger, often can't pass the SAR test.Though and the PIFA antenna can be preferably by the SAR test, because the restriction of mobile phone overall dimensions has to do some compromises on the emission/receptivity of mobile phone.Further miniaturization along with mobile phone integral body, the design of PIFA antenna faces more and more harsher space environment, especially for GSM/DCS (digital cellular telecommunicationsystems, the digital cellular communication system)/PCS (Personal Communications Service, the person-to-person communication service) three-frequency antenna, narrow space becomes the PIFA antenna can't possess desirable bandwidth.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of novel antenna radiator and antenna assembly, more specifically say so a kind of novel PIFA antenna radiator and antenna assembly, solve existing multifrequency antenna especially the GSM/DCS/PCS three-frequency antenna can't possess the problem of optimum wideband.
The utility model provides a kind of novel terminal built-in antenna to be achieved in that
A kind of antenna radiator, this antenna radiator comprise first Department of Radiation, second Department of Radiation, ground connection leg, feed leg and base portion, also comprise the 3rd Department of Radiation;
Described first Department of Radiation, second Department of Radiation, the 3rd Department of Radiation one end connect base portion, and the other end is unsettled; Described the 3rd Department of Radiation is arranged between described first Department of Radiation and described second Department of Radiation;
One end of described ground connection leg connects described base portion, other end ground connection;
Described feed leg links to each other with base portion.
Preferably, described first Department of Radiation is made up of the line part, concave shaped portion and the kink that link to each other successively.
Preferably, described second Department of Radiation, the 3rd Department of Radiation are parallel with the line part of described first Department of Radiation.
Preferably, the interval between described the 3rd Department of Radiation and described first Department of Radiation is less than the interval between the 3rd Department of Radiation and described second Department of Radiation.
Preferably, a unsettled end of described second Department of Radiation is provided with those widened sections near a side of the 3rd Department of Radiation, and a unsettled end of described the 3rd Department of Radiation is provided with those widened sections near a side of first Department of Radiation.
Preferably, described antenna radiator is that integrated punching forms.
The invention also discloses a kind of antenna assembly, comprise cell phone mainboard, antenna radiator and support, support is arranged between antenna radiator and the described cell phone mainboard, this antenna radiator comprises first Department of Radiation, second Department of Radiation, ground connection leg, feed leg and base portion, and this antenna radiator also comprises the 3rd Department of Radiation;
Described first Department of Radiation, second Department of Radiation, the 3rd Department of Radiation one end connect base portion, and the other end is unsettled; Described the 3rd Department of Radiation is arranged between described first Department of Radiation and described second Department of Radiation;
One end of ground connection leg connects described base portion, and the other end passes described support and links to each other with the cell phone mainboard earth terminal;
One end of described feed leg connects described base portion, and the other end passes the feed end on the described support connection cell phone mainboard.
Preferably, described first Department of Radiation is made up of the line part, concave shaped portion and the kink that link to each other successively.
Preferably, described second Department of Radiation, the 3rd Department of Radiation are parallel with the line part of described first Department of Radiation.
Preferably, described support is provided with the groove that is used to place loud speaker, it is characterized in that, the concave shaped portion of described first Department of Radiation is near existence one concave surface of a side of support, and the shape of this concave and described groove matches.
Preferably, the interval between described the 3rd Department of Radiation and described first Department of Radiation is less than the interval between the 3rd Department of Radiation and described second Department of Radiation.
Preferably, a unsettled end of described second Department of Radiation is provided with those widened sections near a side of the 3rd Department of Radiation, and a unsettled end of described the 3rd Department of Radiation is provided with those widened sections near a side of first Department of Radiation.
By technique scheme as can be known, compared with prior art, the utility model is not increasing under the situation about taking up room by increase the 3rd Department of Radiation that size is suitable between first Department of Radiation and second Department of Radiation, has expanded the bandwidth of operation of antenna assembly.
Description of drawings
Fig. 1 is the structural representation of a kind of antenna radiator of the utility model;
The vertical view of a kind of antenna radiator of Fig. 2 the utility model;
Fig. 3 is the front view of a kind of antenna radiator of the utility model;
Fig. 4 is the right view of a kind of antenna radiator of the utility model;
Fig. 5 is the structural representation of kink of first Department of Radiation of a kind of antenna radiator of the utility model;
Fig. 6 is the structural representation of the base portion of a kind of antenna radiator of the utility model;
Fig. 7 is the structural representation of a kind of antenna assembly of the utility model;
Fig. 8 is the I portion enlarged drawing of Fig. 7;
Fig. 9 is the test standing wave pattern of prior art;
Figure 10 is the test standing wave pattern of a kind of antenna assembly of the utility model.
Embodiment
Existing mobile phone PIFA antenna radiator generally all comprises first Department of Radiation and second Department of Radiation, for example the operating frequency range of GSM mobile handset antenna is: 890-960MHZ, wherein, upstream frequency is 890-915MHZ, downstream frequency is 935-960MHZ, and then this antenna comprises corresponding to first Department of Radiation of frequency 890-915MHZ and is second Department of Radiation of 935-960MHZ corresponding to frequency.
The antenna working band can cover the frequency of GSM/DCS/PCS if desired, that is to say needs antenna at 890-960MHZ, (full name is a voltage standing wave ratio to the standing-wave ratio of 1710-1850MHZ and 1880-1990MHZ frequency range, VSWR, Voltage Standing Wave Ratio) enough little (for antenna for mobile phone, standing-wave ratio has been more satisfactory just less than 3), because the reception frequency range of DCS and the transmit frequency band of PCS are overlapping, so existing P IFA antenna makes DCS and the shared same Department of Radiation of PCS, and because the bandwidth requirement of DCS and PCS two frequency ranges has reached 280MHZ, add the restriction in the space of mobile phone, existing mobile phone PIFA antenna can't be taken into account the bandwidth of DCS and PCS two frequency ranges.
The utility model provides a kind of novel PIFA antenna radiator and has used the antenna assembly of this antenna radiator, by on the basis of existing P IFA antenna, revises its structure and shape, makes its bandwidth can cover the frequency of GSM/DCS/PCS.
Understand the technical solution of the utility model for those skilled in the art can be known, the technical solution of the utility model is described in detail below in conjunction with drawings and Examples.
Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, wherein, Fig. 1 is the structural representation of a kind of antenna radiator of the utility model; Fig. 2 be a kind of antenna radiator of the utility model vertical view; Fig. 3 be a kind of antenna radiator of the utility model front view, Fig. 4 be a kind of antenna radiator of the utility model end view.
A kind of antenna radiator, this antenna radiator is made up of first Department of Radiation 11, the 3rd Department of Radiation 12, second Department of Radiation 13, ground connection leg 14, feed leg 15 and base portion 16; One end of described first Department of Radiation 11, the 3rd Department of Radiation 12, second Department of Radiation 13 connects base portion 16, and the other end is unsettled; Described the 3rd Department of Radiation 12 is arranged between described first Department of Radiation 11 and described second Department of Radiation 13; One end of described ground connection leg 14 links to each other with described base portion 16, and the other end connects ground; One end of described feed leg 15 links to each other with described base portion 16, and the other end connects outside feed end (not marking among the figure); Described first Department of Radiation 11 is made up of the line part 111, concave shaped portion 112 and the kink 113 that link to each other successively, described line part 111 1 ends connect described base portion 16, the other end connects an end of concave shaped portion 112, the other end of this concave shaped portion 112 is connected with an end of kink 113, and the other end of this kink 113 is unsettled.
The line part 111 of described first Department of Radiation 11, the 3rd Department of Radiation 12 are parallel with second Department of Radiation 13.Interval between described the 3rd Department of Radiation 12 and described first Department of Radiation 11 is less than the interval between the 3rd Department of Radiation 12 and described second Department of Radiation 13.A unsettled end of described second Department of Radiation 13 is provided with those widened sections 131 near a side of the 3rd Department of Radiation 12, and a unsettled end of described the 3rd Department of Radiation 12 is provided with those widened sections 121 near a side of second Department of Radiation 13.By adjusting the width and the length of described those widened sections 121, those widened sections 131, can finely tune the radiation characteristic of this antenna radiator.
Described antenna radiator is provided with plurality of fixed hole 101, and these fixing holes 101 are distributed on first Department of Radiation 11, the 3rd Department of Radiation 12, second Department of Radiation 13 and the base portion 16.
The kink 113 of described first Department of Radiation 11 is made up of straightway 1131, straightway 1132 and straightway 1133, as shown in Figure 5, described straightway 1,131 one ends connect concave shaped portion 112, the other end links to each other with an end of straightway 1132 is slick and sly, the other end of this straightway 1132 links to each other with an end of straightway 1133 is slick and sly, and the other end of this straightway 1133 is unsettled.
The structure of described base portion 16 as shown in Figure 6, this base portion 16 is made up of with the connecting portion 164 that is connected the 3rd Department of Radiation 12 and first Department of Radiation 11 simultaneously the connecting portion 161 that is connected with feed leg 15, the connecting portion 162 that is connected with ground connection leg 14, the connecting portion 163 that links to each other with second Department of Radiation 13.Between described connecting portion 163 and connecting portion 161, be provided with groove 165, between connecting portion 161 and connecting portion 162, be provided with groove 166.
The utility model discloses a kind of antenna assembly that comprises described antenna radiator simultaneously, please refer to Fig. 7 and Fig. 8, and Fig. 7 is the structural representation of the utility model antenna assembly, and Fig. 8 is the I portion enlarged drawing of Fig. 7.This antenna assembly is arranged on the especially inside of mobile phone of portable terminal, this antenna assembly comprises antenna radiator 10, support 20 and cell phone mainboard 30, described support 20 is arranged between antenna radiator 10 and the cell phone mainboard 30, described antenna radiator 10 covers on the described support 20, and described ground connection leg 14 passes described support 20 with feed leg 15 and links to each other with the feed end (not shown) with the earth terminal of cell phone mainboard 30 respectively.
Described support 20 is provided with the groove 21 that is used to place electromagnetic shaker and camera, also be provided with the groove 22 that is used to place loud speaker, the concave shaped portion 112 of described first Department of Radiation 11 is provided with a concave surface near a side of described groove 22, the shape of the shape of this concave surface and described groove 22 is complementary, for example, when described groove 22 was circular groove, being shaped as of the concave surface of a side of the concave shaped portion 112 close described grooves 22 of described first Department of Radiation 11 was circular-arc.The shape of this concave surface just makes the Department of Radiation 11 of winning avoid groove 21 and groove 22, thereby has avoided being given a shock when working the influence of device, camera and loud speaker.
The ground connection leg 14 of antenna radiator 10 and feed leg 15 tips upsweep, the structure of middle part bending can so that antenna for mobile phone when being given a shock owing to metallic spring keeps contacting well with feed circuit with ground.Punching press salient point 141 and punching press salient point 151 that the center of crimping portion is provided with can effectively be controlled ground connection leg 14 and the connecting point position of feed leg 15 on cell phone mainboard 30.
Described antenna radiator 10 is distributed in the plurality of fixed hole 101 on first Department of Radiation 11, the 3rd Department of Radiation 12, second Department of Radiation 13 and the base portion 16, is used for antenna radiator 10 is fixed on described support 20.This fixing hole 101 can be the hot melt hole, promptly antenna radiator 10 hot melts can be fixed on the support 20 by this hot melt hole.
Different with a Department of Radiation of the DCS of prior art and the shared PIFA antenna of PCS frequency range, in this antenna assembly, first Department of Radiation 11 is used to receive the GSM frequency band signals, and the 3rd Department of Radiation 12 receives the signal of DCS frequency ranges, and second Department of Radiation 13 receives the signal of PCS frequency ranges.Because the difference of second Department of Radiation 13 and the 3rd Department of Radiation 12 shapes, operating frequency just can remedy the weakness of two Departments of Radiation in DCS/PCS frequency range front and back bandwidth deficiency mutually.
Fig. 9 shows the test standing wave pattern of prior art; Shown in the figure, the standing-wave ratio at frequency 6 places that the frequency 3 that frequency is the frequency 1 of 880MHZ, frequency 2 that frequency is 960MHZ, frequency is 1710MHZ, the frequency 4 that frequency is 1880MHZ, frequency 5 that frequency is 1850MHZ and frequency are 1990MHZ is about 1.83,2.94,6.38,2.16,3.41,8.29 respectively.
Figure 10 shows test standing wave pattern of the present utility model; Shown in the figure, in the frequency band of 880-960MHZ, 1710-1990MHZ, maximum standing-wave ratio is no more than 3.0.
By Fig. 9 and Figure 10 more as can be seen, with respect to existing P IFA antenna assembly, the utility model possesses wideer bandwidth.
Described antenna radiator 10 is to adopt the conductor piece integrated punching to form.The material of conductor piece can be sheet brass or foreign copper-nickel alloy.
By above example as can be seen, the utility model has been expanded the bandwidth of operation of antenna assembly by increase the 3rd Department of Radiation 12 that size is suitable between first Department of Radiation 11 and second Department of Radiation 13.And, consider the influence of other active parts in the mobile phone, by specific shape, get around described active parts, both reduced the influence of other active parts, made full use of the space.
In addition, the utility model can be formed by integrated punching, realizes that easily low processing cost is fit to large-scale production.
Those skilled in the art will be understood that; more than disclosed only be preferred implementation of the present utility model; but the utility model is not limited thereto; any those skilled in the art can think do not have a creationary variation; and, all should drop in the protection range of the present utility model not breaking away from some improvements and modifications of being done under the utility model principle prerequisite.
Claims (12)
1. antenna radiator, this antenna radiator comprises first Department of Radiation, second Department of Radiation, ground connection leg, feed leg and base portion, it is characterized in that, also comprises the 3rd Department of Radiation;
Described first Department of Radiation, second Department of Radiation, the 3rd Department of Radiation one end connect base portion, and the other end is unsettled; Described the 3rd Department of Radiation is arranged between described first Department of Radiation and described second Department of Radiation;
One end of described ground connection leg connects described base portion, other end ground connection;
Described feed leg links to each other with base portion.
2. antenna radiator as claimed in claim 1 is characterized in that, described first Department of Radiation is made up of the line part, concave shaped portion and the kink that link to each other successively.
3. antenna radiator as claimed in claim 1 or 2 is characterized in that, described second Department of Radiation, the 3rd Department of Radiation are parallel with the line part of described first Department of Radiation.
4. antenna radiator as claimed in claim 1 or 2 is characterized in that, the interval between described the 3rd Department of Radiation and described first Department of Radiation is less than the interval between the 3rd Department of Radiation and described second Department of Radiation.
5. antenna radiator as claimed in claim 1 or 2, it is characterized in that, a unsettled end of described second Department of Radiation is provided with those widened sections near a side of the 3rd Department of Radiation, and a unsettled end of described the 3rd Department of Radiation is provided with those widened sections near a side of first Department of Radiation.
6. antenna radiator as claimed in claim 1 or 2 is characterized in that, described antenna radiator is that integrated punching forms.
7. antenna assembly, comprise cell phone mainboard, antenna radiator and support, support is arranged between antenna radiator and the described cell phone mainboard, this antenna radiator comprises first Department of Radiation, second Department of Radiation, ground connection leg, feed leg and base portion, it is characterized in that this antenna radiator also comprises the 3rd Department of Radiation;
Described first Department of Radiation, second Department of Radiation, the 3rd Department of Radiation one end connect base portion, and the other end is unsettled; Described the 3rd Department of Radiation is arranged between described first Department of Radiation and described second Department of Radiation;
One end of ground connection leg connects described base portion, and the other end passes described support and links to each other with the cell phone mainboard earth terminal;
One end of described feed leg connects described base portion, and the other end passes the feed end on the described support connection cell phone mainboard.
8. antenna assembly as claimed in claim 7 is characterized in that, described first Department of Radiation is made up of the line part, concave shaped portion and the kink that link to each other successively.
9. as claim 7 or 8 described antenna assemblies, it is characterized in that described second Department of Radiation, the 3rd Department of Radiation are parallel with the line part of described first Department of Radiation.
10. as claim 7 or 8 described antenna assemblies, described support is provided with the groove that is used to place loud speaker, it is characterized in that the concave shaped portion of described first Department of Radiation is near existence one concave surface of a side of support, the shape of this concave and described groove matches.
11., it is characterized in that the interval between described the 3rd Department of Radiation and described first Department of Radiation is less than the interval between the 3rd Department of Radiation and described second Department of Radiation as claim 7 or 8 described antenna assemblies.
12. as claim 7 or 8 described antenna assemblies, it is characterized in that, a unsettled end of described second Department of Radiation is provided with those widened sections near a side of the 3rd Department of Radiation, and a unsettled end of described the 3rd Department of Radiation is provided with those widened sections near a side of first Department of Radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200708928U CN201112551Y (en) | 2007-06-07 | 2007-06-07 | Antenna radiator and antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200708928U CN201112551Y (en) | 2007-06-07 | 2007-06-07 | Antenna radiator and antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112551Y true CN201112551Y (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200708928U Expired - Fee Related CN201112551Y (en) | 2007-06-07 | 2007-06-07 | Antenna radiator and antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112551Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425887A (en) * | 2013-08-30 | 2015-03-18 | 环旭电子股份有限公司 | Antenna module and antenna thereof |
| CN104466357A (en) * | 2013-09-23 | 2015-03-25 | 中兴通讯股份有限公司 | Antenna device and terminal |
| CN107959128A (en) * | 2017-10-13 | 2018-04-24 | 瑞声科技(新加坡)有限公司 | Diversity antenna and mobile terminal |
-
2007
- 2007-06-07 CN CNU2007200708928U patent/CN201112551Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425887A (en) * | 2013-08-30 | 2015-03-18 | 环旭电子股份有限公司 | Antenna module and antenna thereof |
| CN104466357A (en) * | 2013-09-23 | 2015-03-25 | 中兴通讯股份有限公司 | Antenna device and terminal |
| CN107959128A (en) * | 2017-10-13 | 2018-04-24 | 瑞声科技(新加坡)有限公司 | Diversity antenna and mobile terminal |
| CN107959128B (en) * | 2017-10-13 | 2021-02-26 | 瑞声科技(新加坡)有限公司 | Diversity antenna and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20120607 |